Fuel System Pressure Relief Procedure

TOOLS REQUIRED

- J 34730 Fuel Pressure Gauge

WARNING: Relieve the fuel system pressure before servicing fuel system components In order to reduce the risk of fire and personal Injury. After relieving the system pressure, a small amount of fuel may be released when servicing the fuel lines or connections. In order to reduce the chance of personal Injury, cover the regulator and the fuel line fittings with a shop towel before disconnecting. This will catch any fuel that may leak out. Place the towel In an approved container when the disconnection Is complete.

1. Disconnect the negative battery cable in order to avoid possible fuel discharge if an accidental attempt is made to start the engine.
2. Loosen the fuel filler cap in order to relieve the tank vapor pressure.
3. Wrap a shop towel around the fitting while connecting the gauge in order to avoid spillage.
4. Connect the gauge J 34730-1A or the equivalent to the fuel pressure connection.
5. Install the bleed hose into an approved container and open valve in order to bleed the system pressure. The fuel connections are now safe for servicing.
6. Drain any fuel remaining in gauge into an approved container.